The average height of 10 students in a class was calculated as 166 cm. Onverification it was found that one reading was wrongly recorded as 160 cm, instead of150 cm. Find the correct mean height
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Answer:
165 cm.
Step-by-step explanation:
Total height of all 10 students = 166 * 10 = 1660 cm.
Height wrongly recorded = 160
Correct height = 150.
New total height of all 10 students = 1660 - 160 + 150 = 1650cm.
correct mean = 1650/10 = 165 cm.
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